How to find out whether a shape has touched another shape?

How do i find out if a touch is over the frame of another shape?

• I know how to get the position touched, so now i have a CGPoint with the touched position. What's the best way to find out if the touch is over a UIView or not? I know of the method of: if touchpoint.x > frame.origin.x && touchpoint.x < frame.size.width + frame.origin.x etc., but is this the best way of going about it?

• Answer:

  If you simply want to know if a point is inside the bounds of a view, you can use the pointInside:withEvent: method. CGPoint touchPoint = [theTouch locationInView:theView]; // If the point was retrieved for a different view, it must be converted to the coordinate space of the destination view using convertPoint:fromView: if([theView pointInside:touchPoint withEvent:nil]) { NSLog(@"point inside"); }